Product Description:

The MAC025B-0-ZS-4-E/040-A-0/WI651LV/S001 is an AC servo motor built by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. This model is used where a velocity or torque command is delivered as a proportional voltage rather than through digital fieldbus channels. By translating that analog command into controlled shaft rotation, the motor performs indexing, tracking, or continuous-duty motion on medium-power machine axes. Its compact frame and modular connector layout allow the unit to be integrated into existing cabinets with minimal mechanical alteration. That operating method also suits older motion platforms that rely on analog amplifiers instead of networked controllers.

Thermal management relies on natural convection, so heat is removed through the housing surface without active blowers or liquid circuits. The motor has size B and a 025 length code, which gives it a short axial footprint for tight assemblies. Power is routed through a connector on side A, keeping the cable exit aligned with the driven mechanism and reducing bend radius. For position feedback, the motor provides tacho feedback and incremental or absolute encoder signals, enabling either analog speed loops or high-resolution digital position loops when paired with suitable control electronics.

The unit is supplied without a blocking brake, making it suitable for applications where clamping or holding torque is supplied externally rather than by the motor itself. It is classified for analog drives, so its internal windings and sensor scaling match voltage-controlled amplifiers common in legacy automation lines. Shaft position can also be reported through an incremental encoder with standard mounting, which supports retrofit installations that keep the original machine layout unchanged. This arrangement works well on machines that already use external holding devices or other load-retention methods.